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Aleksandr-060686 [28]
3 years ago
5

Solve x^2 + 6x + 4=0?

Mathematics
1 answer:
kati45 [8]3 years ago
4 0
You need to use the quadratic formula for this question.
\frac{-b+- \sqrt{b^2-4ac} }{2a}
In your equation, a is 1, b is 6, and c is 4. (I couldn't find a plus minus sign, so that's what the +- means, sorry if there's confusion.)
Sub those into the quadratic formula, and 
\frac{-6+- \sqrt{(6)^2-4(1)(4)} }{2(1)}
For the first answer, we should get 
x1=-0.7639, when you add the √6^2-4(1)(4)
For the second answer, we get
x2=-5.2361 when we subtract the √6^2-4(1)(4)
Therefore, the x values that make this equation equal to 0 should be approximately -0.7639 and -5.2361.
The more specific answers are
x1= -3+√5 and x2=-3-√5.

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Ok so I have math homework and I need so help ASAP I need to find the average of 35 40 12 16 25 and 10 so could someone plz plz
sleet_krkn [62]

Answer: 23! Add your numbers, and divide that sum by the amount of numbers added to get average!

Step-by-step explanation:

The average is found by adding all numbers of the sample, and diving by the amount of numbers added. For example:

The average of 1, 2, and 3. You first add 1 + 2 + 3 to get 6.

You then divide 6 by the number of numbers added, being 3 (1, 2, and 3.).

6 / 3 = 2. The average of 1, 2, and 3 is 2.

In your case, you have 35, 40, 12, 16, 25, and 10.

First you add 35 + 40 + 12 + 16 + 25 + 10 to get 138.

Then you divide 138 by the amount of numbers you added: 6.

138 divided by 6 = 23 (138/6).

Hope this helps!

Add your numbers, and divide that sum by the amount of numbers added to get average!

4 0
3 years ago
Read 2 more answers
I need a bit of help on this one: mr. james borrows money from the bank to buy a new car. he borrows 10,000 at 3% for 5 years. H
EastWind [94]

Answer:

Between $11,000-$11,500  

Between $10,500-$11,000  

Between $9,500-$10,000  

Between $9,000-$9,500  

Between $10,000-$10,500

Correct answer:

Between $10,000-$10,500

8 0
3 years ago
Which of the following is the solution to 17 - 2x=-11?<br> 03<br> O-14<br> 14<br> -3
Rudiy27

Answer:

17-2x=-11 ---> 14

Step-by-step explanation:

plug in the "answers"

17-2(14)=-11

6 0
2 years ago
Read 2 more answers
Let z be the product of any 5 consecutive three digit odd natural numbers. When you multiply
Charra [1.4K]

Answer:

  5

Step-by-step explanation:

If x is the middle number of the 5 consecutive odd numbers, their product is ...

  x(x -2)(x +2)(x -4)(x +4) = x(x² -4)(x² -16)  = x⁵ -20x³ +64x

The first 3-digit prime is 101, so the product of that with this is ...

  101(x⁵ -20x³ +64x) = 101x⁵ -2020x³ +6464x

Since we're only interested in the units digit, we can find the mod 10 value of this to be ...

  (x⁵ +4x) mod 10

Possible units digits of x are 1, 3, 5, 7, 9, so possible units digits of this product are ...

  x(x⁴ +4) = 1(1⁴ +4) = 5

  3(3⁴ +4) = 3(1 +4) = 5 . . . . mod 10

  5(5⁴ +4) = 5(5 +4) = 5 . . . . mod 10

  7(7⁴ +4) = 7(1 +4) = 5 . . . . mod 10

  9(9⁴ +4) = 9(1 +4) = 5 . . . . mod 10

In every case, the units digit of 101z will be 5.

4 0
2 years ago
What is the measurement of angle x (in degrees)? <br><br> Explain how you got your answer.
Igoryamba

Answer:

120

Step-by-step explanation:

3 0
3 years ago
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